Woodworking-lathe.



No. 768,466. I PATENTED AUG. 23, 1904.

' J. M. KUEBLER.

WOODWORKING LATHE.

APPLIO ATION FILED DEG. 1'7. 1902.

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768,466 v PATENTED AUG. 23, 1904.

.J. M. KUEBLERY.

Q 'WOODWORKING LATHE.

' APPLIOATION FILED DEG. 1'7I 1902.

PATENTED AUG. 23, 1904.

J. M. KUEBLER.

WOODWORKING LATHE. APPLICATION FILED DEG.17, 190g.

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J. M. KUEBLER. WOODWORKING LATHE.

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' PATENTED AUG. 23, 1904, J. M. KUEBLER. WOODWORKING LATHE.

APPLIOATICN FILED DEC. 17, 1902.

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UNITED STATES Patented August 23, 1904.

JOHN MARTIN KUEBLER, OF VVAUSAU, WISCONSIN.

WOODWORKlNG-LATHE.

SPECIFICATION forming part of Letters Patent No. 768,466, dated August 23, 1904.

Application fil d December 17,1902. semi No. 135,477. (No model.)

dles, columns, handles, chairwork, insulatorpins, and analogous work.

The machine is of that general class in which two revolving turrets are provided, each having a number of independently-rotating centers carrying the work, so that upon the rotation of the turrets the pieces of work are successively presented to the tool."

In the present invention the cutter is of the rotary type and is driven at a high speed. Both of the turretsare driven by certain peculiar mechanism which imparts to the turrets a slow step-by-step movement, the elements being so arranged that the turrets are at, or practically at, rest during the time that r the tool engages the work, the movement of the turrets being independent of the rotation of the work-holders or center pins, which latter rotation goes on continuously.

The machine also involves knives for automatically trimming off the ends of the work and dropping them from the machine and a novel gage for placing the Work in position.

Various other features of major and minor importance are involved, all of which will be fully brought out hereinafter.

' This specification is an exact description of one example of my invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the machine. Fig. 2 is a plan view thereof. Fig. 3 is an end elevation. Fig. 4 is an enlarged crosssection on the line 4 4 of Fig. 2. Fig. 5 is a section on the line 5 5 of Fig. 3. Fig. 6 is an enlarged section taken through one of the tool-holding spindles of the rear turret. Fig.

7 is a sectional elevation showing the Work adjuster or gage, and Fig. 8 is a detail section on the line 8 8 of Fig. 2.

The machine comprises a bed 10, which is supported on leg like end members 7 11. Mounted in boxes 12 on the bed 10 is the shaft14, which carries the rotating cutter, the same being indicated by the dottedv lines 15 in Fig. 4. On this shaft 14 is fasteneda drivepulley 16 and also a small pulley 17, over which runs a belt 18, extending downward to' a pulley 19, fastened on a shaft 20, which is suitably mounted in the front frame member 11. This shaft 20 carries a gear 21, this gear being meshed with a large spur gear 22, mounted on a shaft 23, revolubly mounted alongside of the shaft 20. A pinion 24 is fastened to the shaft 23, and this is in mesh with a' spur 25, mounted on a sleeve 26, which is fitted loosely over a part of the shaft 20. Said sleeve 26 carries a band-wheel 27, and from this a belt 28 passes upward to a pulley 29, fastened on a shaft 30, revolubly mounted at the front end of the machine and extending longitudinally thereof.

is in mesh with a spur 33 on a shaft 34, mounted at the front end of the machine parallel with the shaft 30. This shaft 34, therefore,

is driven from the shaft 14, but at a greatlyreduced speed.

Mounted in boxes 35, arranged one at each end of the machine, is the main shaft 36, which extends longitudinally of the machine, from end to end thereof. This shaft is driven from the shaft 34 by coacting gears 94 and 37. 38 indicates boxes which carry the hubs 39 of the turrets, the shaft 36 extending loosely through said hubs. The boxes 35 and 38 are carried in pairs on pedestals 40. These pedestals are' mounted to belongitudinally adjustable on the bed 10, so that the turrets may be moved toward and from each other to suit the length of the work. The turret-hubs 39 project respectively toward the ends of the machine,

and on the front turret-hub is fastened a ratchet 41, which has teeth therein corresponding in number to the number of pairs of Workrear turret.

holders on the turrets. Alongside of this ratchet is arranged a loose ring 42, on the extension 43 of which is intermediately pivoted a dog 44, this dog having a limited movement on the said extension and working at one end with the ratchet. tached to the other end of the pawl and also to a crank-disk 46 on the shaft 34. Fastened to the turrethub 39, directly alongside of the ring 42, is a spur-gear 47, which is meshed with a pinion 48, fastened to a shaft 49, mounted at the side of the machine and extending rearward, carrying at its rear end a pinion 50, which meshes with a spur 51, fastened on the hub 39 of the rear turret. Now it will be observed that the rotation of the shaft 34 will, through the parts 46, 45, 42, 43, and 41, impart to the forward turret and to the gear 47 a step-by-step movement. This gear 47 will, through the elements 48, 49, 50, and 51, impart an exactly corresponding movement to the By this mechanism both turrets are driven by a movement positively applied.

92 indicates a pawl which works with a ratchet-surface 92 (see Fig. 8) on the gear 47 to prevent back movement of this element and its connected parts.

The forward turret comprises, in addition to its hub 39, two webs 52 and 53, these webs carrying in suitable boxes the revoluble spindles 54. Said spindles 54 have at their inner ends pinions 55 attached thereto, and these pinions are in mesh with a spur-gear 56, fastened on the shaft 36. Each spindle 54 carries a center pin 57, these center pins being adapted to engage the work in the usual manner. The rear turret comprises, in addition to its hub, webs 58 and 59, and said hubs carry in suitable boxes a set of spindles 60. At the inner ends of these spindles are provided pinions 61, which are in mesh with the spurgear 62,'fas tened to the shaft 36 and by which means the spindles 60 are driven. 63 indicates the center pins of the rear turret, which are engaged in the spindles 60, as shown. Mounted loosely on the reduced rear ends of the spindles 60 are threaded sleeves 64, which engage corresponding threads in the web 59. These sleeves 64 carry pinion-gears 65, fast thereto, and between these gears and a collar 66 on the spindle 60 is arranged a rubber cushion 67, through which cushion movement is transmitted from the sleeve 64 to the spindle 60. Mounted loosely on the shaft 49 is a lever 68, which has its lower end pressed outward by a rubber cushion 69. The upper end of this lever carries a shaft 7 O, and on this shaft is fastened a hand-wheel 71 and a spur-gear 7 2. The gear 72 is adapted to mesh with the gears as said gears 65 are presented to the gear 72 by the rotation of the turret. By means of these parts 64, 65, 67, 72, and 71 the rear center spindles 60 may be moved backward, so as to draw backward the center pins 63 and enable the work to be placed between the center pins, and then by A connecting-rod 45 is atreversing the gear '72 the spindle 60 may be moved up to clamp the work between the center pins. It will be observed that this action is independent with respect to the center pins-- that is to say, they are moved up one at a time and not simultaneously.

Mounted loosely on the shaft 49 and spaced from each other (see. Fig. 2) are boxes 73, which have tails 74 extending downward and adapted to engage the side of the bed 10 to limit the outward movement of the upper pins 75, which are carried by the boxes 73, as best shown in Figs. 4 and 7. To the lower end of each pin 75 is fastened a stout steel spring 76, and these springs are in turn fastened at their upper ends to the pins 77, the pins 75 and 77 projecting into the spring 76, as shown. Each pin 77 carries a work-gage jaw '78. This jaw is preferably formed of two parts bolted together, as shown, and it has a cavity 79 therein, in which cavity are arranged boxes 80. These boxes carry rigidly a shaft 81, which extends parallel to the shaft 49 and carries two additional gage-jaws 82. (See Fig. 2.) It will be observed that these gage-jaws 78 and 82 are supported on the boxes 73 through the medium of the springs 76, these springs furnishing sufficient rigidity to enable the, gagejaws properly to perform their work, but at the same time allowing the gages to yield or give in various directions, as will be hereinafter explained. These gagedcvices are used to facilitate placing the work in the nnwhine. Immediately below the gage devices are located the knives 83 for trimming the work and dropping it from the machine. (See Figs. 2 and 4.) The knives 83 are carried, respectively, on arms 84, which are fastened to a shaft 85, this shaft being mounted loosely in boxes 86, carried on a slide 87, which is adjustably mounted on the side edge of the bed 10, a set-screw 88 being provided to fasten the slide in place. Fastened to the shaft is an arm 89, which projects laterally and bears on a rubber cushion 90, mounted on the slide 87, a tie-bolt 91 passing through the end of the arm and through the cushion into the slide 87. By this construction the knives 83 are given a strong yet yielding pressure toward the work.

93 indicates tie-rods which extend between the turrets, as shown, and prevent them from spreading under the pressure of the devices for forcing the center pins up against the work. These rods are intended to be adjusted according to the length of the work.

The manner of using and operating the device may be traced as follows: The shaft 14 being set in motion, the shaft 36 and turrets 39 will be driven in the manner previously described. The hand-wheel 71 should be manipulated to draw back the successive rear center pins, and as each pair of center pins approaches a position opposite the work gages or jaws 78 a piece of work should be placed in these .jaws .and the jaws rocked forward until the work assumes the proper position between the center pins, after which the rear center pin concerned with thispiece of work should be moved up, so as to clamp the work.

between the two pins. A second piece of work is placed withinthe next pair of pins, which approach as the turret revolves, and this is kept up continuously during the, operation of the machine. The peculiar manner of mounting the gagesv or jaws 78 allows the Work automatically. to disengage the jaws without any especial attention on the part of the operator. The link-and-ratchet mechanism before described imparts astep-by-step movement to the turrets, andthe elements are so arranged that as thework engages the tool 15 the turrets will be very nearly at rest, and this is also the case as the center pins come opposite the work-gage. The work is, however, through the action of thegears 56, 62, 55, and 62, turned continuously while the cutter is at work thereon. The cutter is ar ranged to completeits work on the material held by the center pins during one revolution of the center pins. After the work passes the cutter 15 it is moved up into engagement with the knives 83, the work being meanwhile turned against the knives. Said knives under the pressure of the rubber cushion 9O trim off the ends of the work and the same fall from the machine between the turret-pedestals 4.0. This trimming off and dropping of the work occurs immediately before the center pins move up opposite the work-gage,,and therefore as soon as a piece ofwork falls from a certaln pair of center pins these pins are then presented to the work holder or gage and a second piece of work may be placed therein. Various changes in the form, proportions,

and minor details of my invention may be re sorted to at will without departing from 'the spirit and scope thereof. Hence I consider myself entitled to all such variations as may lie within the intent of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a turret, of a center spindle revolubly mounted therein, a sleeve revolubly mounted on the center spindle and having threaded engagement with the turret, means for turningthe sleeve, means for turning the center spindle, and a cushion-bearing between the sleeve and spindle.

2. The combination with the means for carrying and cutting the work, of a workgage and means for holding the same, said means comprising a divided pin, and a spring connected to the pin-sections and inclosing the same. 1

3. The combination with the means for. holding and cutting the work, of a rockable box, a tail carried thereby, a work-gage, and means for mounting the work-gage on the box, said means comprising a divided pin and turret, a work-holder mounted thereon and .movable into and out ofactive position, and

means for so moving the work-holder, said means comprising a manually operative actu. ating member mounted at one side-of the turret independently thereof, and into and out of engagement with which member the work holder, is moved by the turret.

5. In a lathe, the combination of a rotating turret, a. work-holder mounted thereon and movable into and out of active position, and means for so moving the workholder, said. means comprisinga gear in connection with the work-holder, a second gear, means for mountingthe second gear at one side of and independently of the turret, whereby the movement of theturret carries the first gear periodically into mesh ,with the second gear,

and means for manually operating the second.

gear. v r I 6. In a lathe, the combination of a rotating turret, a work-holder mounted therein and.

movable thereon, into and out of active position, means for so moving the work-holder, said means comprising a manually-operative actuating member located at one side of the turret independently thereof and into and out of engagement with which member the workholder is moved by the turret, and a workgage or feeding device also mounted. independently of the turret-and juxtaposed to the said manually-operative actuating member.

7. Ina lathe, the combination of a rotating turret, a work-holder mounted therein and movable thereon into and out of active position, means for so moving the work-holder, said means comprising a manually-operative actuating member located at one side of the turret independently thereof and into and out of engagement with which member the workv holder is moved by the turret, a work-gage or feeding device located adjacent to said actuating member, and meansfor mounting said;

work-gage to swing toward and from the work-holder.

8.- The combination of a rotary work-holder,

means for mounting the same to move into and out of operative posltion, a sleeve loosely encircling the work-holder and threaded-in I frame and with the means for carrying and cutting the work, of a box mounted to rock, a

tail carried thereby and arranged to engage the frame to limit the outward movement of the box, a work-gage, and means for yieldingly mounting the gage on the box.

10. In 2. lathe, the combination of a'rotary turret, a ratchet connected therewith, a ring arranged loosely alongside of the ratchet, an intermediately-pivoted pawl mounted on the ring, said pawl having a limited independent movement and coacting at one end with the ratchet, a link connected with the other end of the pawl, and means for driving the link.

11. The combination of a rotary turret. a Work-holder mounted thereon and movable into and out of operative position, and means for moving the work -holder, said means including a gear connected with the workholder, a second gear, and means for loosely mounting the second gear independently of the turret in the path of the first-named gear, the second-named gear being adapted to be manually rotated, whereby as the two gears mesh, the said means for moving the workholder may be operated.

12. In a lathe, the combination of a rotary turret, a center spindle revolubly mounted therein, means for revolving the spindle in the turret, a sleeve revolubly mounted on said spindle, the sleeve being exteriorly threaded and a part of the turret having threads c0- acting therewith, a gear fastened to said sleeve, a cushioned connection between the gear and spindle to impart an axial movement to the latter, and means whereby the secondnamed gear may be rotated at will.

13. In a lathe, the combination of a rotary turret, a center spindle revolubly mounted therein, means for revolving the spindle in the turret, a sleeve revolubly mounted on said spindle, the sleeve being exteriorly threaded and a part of the turret having threads coacting therewith, a gear fastened to said sleeve. a cushioned connection between the gear and spindle to impart an axial movement to the latter, and means whereby the second-named may be rotated at will, said means com prising a gear loosely mounted independently of the turret in the path of the seeond-named gear, the last-named gear being adapted to be manually rotated.

ln testimony whereof .I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN MA RTI N KUEB L 1*] h \Vitnesses:

M. J. (loner, O. H. Aanmsou. 

